A) 10kg-\[{{\operatorname{ms}}^{-1}}\]
B) 20kg-\[{{\operatorname{ms}}^{-1}}\]
C) 3ukg-\[{{\operatorname{ms}}^{-1}}\]
D) 40kg-\[{{\operatorname{ms}}^{-1}}\]
Correct Answer: D
Solution :
| [d] Given, m = 10 kg, u = 0 |
| s = 80 cm = 0.8 m |
| Using, \[{{v}^{2}}-{{u}^{2}}=2as\] |
| \[{{v}^{2}}=2\times 10\times 0.8=16\] |
| Or \[v=4{{\operatorname{ms}}^{-1}}\] |
| \[\therefore \] Momentum transferred, |
| \[p=mv=10\times 4=40\operatorname{kg}-m{{s}^{-1}}\] |
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